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EWG's Tap Water Database — 2021 UPDATE

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2,3,7,8-TCDD (Dioxin)

Town of Queen Creek

Dioxins are contaminants released from chemical manufacturing, pulp and paper bleaching, and incineration of products that contain chlorine. 2,3,7,8-Tetrachlorodibenzodioxin (2,3,7,8-TCDD) is the most toxic chemical in the group of dioxins. Read More.

Dioxins are among the most toxic known environmental pollutants. As a class, dioxins are extremely toxic, persistent and bioaccumulative; these contaminants build up and are stored in fatty tissues and fluids, such as breast milk, and pass from the mother to the child. Most people are exposed to dioxins through the food they eat, primarily from meat, dairy, fish and eggs. In humans, dioxins are associated with cancer, birth defects, damage to the nervous and immune systems, altered metabolism, thyroid disruption, altered menstrual cycling and damage to the cardiovascular system.

 

43

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015ND20ND
2016ND100ND
2017ND120ND
2018ND110ND
2019ND80ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0002 ppt

The EWG Health Guideline of 0.0002 ppt for 2,3,7,8-TCDD was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

EPA Maximum Contaminant
Level (MCL) 0.03 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2015-03-04201503040378SND
2015-07-21201507210224SND
2016-06-08201606080206SEND
2016-06-08201606080206SDND
2016-06-08201606080206SCND
2016-06-08201606080206SBND
2016-06-08201606080206SAND
2016-08-04201608040131SBND
2016-08-04201608040131SAND
2016-08-04201608040131SCND
2016-08-04201608040131SDND
2016-08-04201608040131SEND
2017-03-15201703150359CSND
2017-03-15201703150359BSND
2017-03-15201703150359ASND
2017-03-15201703150357CSND
2017-03-15201703150357BSND
2017-03-15201703150357ASND
2017-07-06201707110387CSND
2017-07-06201707110390CSND
2017-07-06201707110390BSND
2017-07-06201707110390ASND
2017-07-06201707110387BSND
2017-07-06201707110387ASND
2018-01-18201802080328SND
2018-04-24201804250405SBND
2018-04-24201804250405SAND
2018-05-30201805310319SBND
2018-05-30201805310319SAND
2018-07-18201807180480SAND
2018-07-18201807180480SBND
2018-07-18201807180480SDND
2018-08-01201808020193SBND
2018-08-01201808020193SAND
2018-10-03201810030300SND
2019-02-13201902130135SBND
2019-02-13201902130135SAND
2019-06-03201906040025SBND
2019-06-03201906040025SAND
2019-07-25201907250182SND
2019-09-19201909190004SND
2019-10-24201910240425SAND
2019-10-24201910240425SBND